Home / 5,151.96-7,109.72-2,794.11

Finding the Fourth Proportional to 5,151.96, 7,109.72 and 2,794.11

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Solution

The fourth proportional to 5,151.96, 7,109.72 and 2,794.11 is: 3,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.96 : 7,109.72 = 2,794.11 : x
  2. Step 2: Convert to fraction form
    5,151.96/7,109.72 = 2,794.11/x
  3. Step 3: Cross multiply
    5,151.96x = 7,109.72 × 2,794.11
  4. Step 4: Simplify right side
    5,151.96x = 19,865,325.78
  5. Step 5: Solve for x
    x = 19,865,325.78/5,151.96
  6. Step 6: Final answer
    x = 3,855.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.